have you considered doing a 2.0 bottom end?
I have just got mine back from the garage, its absolutely amazing. I decided to get head flowed and manifolds flowed to match the head, schrick cam and a re map, spent roughly £2000
148.5 BHP and 141ft torque throttle response in much improved all in all highly recommended. having said that the tuner I spoke to said VR6 lump from Mk3 Golf is a fairly straight forward swap, apparently the engine subfame from the Mk3 fits straight onto the Mk2
oh the possabilities